X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=MUON%2FAliMUONPayloadTracker.cxx;h=6fdf9285e42ce9cac91e15ae6af4137d51401f88;hb=e29a165da3598f5021996a6968b79fdff2f51975;hp=34b871db37663ca3f6d565c18afc67f8f57ca887;hpb=607fb67b58a46802e64db37e4bc2ad4927712810;p=u%2Fmrichter%2FAliRoot.git

diff --git a/MUON/AliMUONPayloadTracker.cxx b/MUON/AliMUONPayloadTracker.cxx
index 34b871db376..6fdf9285e42 100644
--- a/MUON/AliMUONPayloadTracker.cxx
+++ b/MUON/AliMUONPayloadTracker.cxx
@@ -13,74 +13,58 @@
  * provided "as is" without express or implied warranty.                  *
  **************************************************************************/
 
+// $Id$
 
-///////////////////////////////////////////////////////////////////////////////
-///
-/// Class Payload
-///
+//-----------------------------------------------------------------------------
+/// \class AliMUONPayloadTracker
 /// Decodes rawdata from buffer and stores in TClonesArray.
-/// 
 /// First version implement for Tracker
 ///
-///////////////////////////////////////////////////////////////////////////////
+/// \author Christian Finck
+//-----------------------------------------------------------------------------
 
 #include "AliMUONPayloadTracker.h"
 
-#include "AliRawReader.h"
-#include "AliRawDataHeader.h"
-#include "AliLog.h"
-
 #include "AliMUONDspHeader.h"
 #include "AliMUONBlockHeader.h"
 #include "AliMUONBusStruct.h"
 #include "AliMUONDDLTracker.h"
 
+#include "AliLog.h"
+
+/// \cond CLASSIMP
 ClassImp(AliMUONPayloadTracker)
+/// \endcond
 
 AliMUONPayloadTracker::AliMUONPayloadTracker()
   : TObject(),
+    fBusPatchId(0),
+    fDspId(0),
+    fBlkId(0),
+    fMaxDDL(20),
     fMaxBlock(2),
     fMaxDsp(5),
-    fMaxBus(5)
+    fMaxBus(5),
+    fDDLTracker(new AliMUONDDLTracker()),
+    fBusStruct(new AliMUONBusStruct()),
+    fBlockHeader(new AliMUONBlockHeader()),
+    fDspHeader(new AliMUONDspHeader()),
+    fParityErrBus(),
+    fGlitchErrors(0),
+    fPaddingErrors(0)
 {
-  //
-  // create an object to decode MUON payload
-  //
-
-  fDDLTracker      = new AliMUONDDLTracker();
-  fBusStruct       = new AliMUONBusStruct();
-  fBlockHeader     = new AliMUONBlockHeader();
-  fDspHeader       = new AliMUONDspHeader();
-}
+  ///
+  /// create an object to decode MUON payload
+  ///
 
-//_________________________________________________________________
-AliMUONPayloadTracker::AliMUONPayloadTracker(const AliMUONPayloadTracker& stream) :
-  TObject(stream)
-{ 
-  //
-  // copy ctor
-  //
-  AliFatal("copy constructor not implemented");
 }
 
-//______________________________________________________________________
-AliMUONPayloadTracker& AliMUONPayloadTracker::operator = (const AliMUONPayloadTracker& 
-					      /* stream */)
-{
-  // 
-  // assignment operator
-  //
-  AliFatal("assignment operator not implemented");
-  return *this;
-}
-
-
 //___________________________________
 AliMUONPayloadTracker::~AliMUONPayloadTracker()
 {
-  //
-  // clean up
-  //
+  ///
+  /// clean up
+  ///
   delete fDDLTracker;
   delete fBusStruct;
   delete fBlockHeader;
@@ -91,11 +75,11 @@ AliMUONPayloadTracker::~AliMUONPayloadTracker()
 Bool_t AliMUONPayloadTracker::Decode(UInt_t* buffer, Int_t totalDDLSize)
 {
 
-  // Each DDL is made with 2 Blocks each of which consists of 5 DSP's at most 
-  // and each of DSP has at most 5 buspatches.
-  // The different structures, Block (CRT), DSP (FRT) and Buspatch,
-  // are identified by a key word 0xFC0000FC, 0xF000000F and 0xB000000B respectively.
-  // (fBusPatchManager no more needed !)
+  /// Each DDL is made with 2 Blocks each of which consists of 5 DSP's at most 
+  /// and each of DSP has at most 5 buspatches.
+  /// The different structures, Block (CRT), DSP (FRT) and Buspatch,
+  /// are identified by a key word 0xFC0000FC, 0xF000000F and 0xB000000B respectively.
+  /// (fBusPatchManager no more needed !)
 
 
   //Read Header Size of DDL,Block,DSP and BusPatch
@@ -142,15 +126,25 @@ Bool_t AliMUONPayloadTracker::Decode(UInt_t* buffer, Int_t totalDDLSize)
       memcpy(fDspHeader->GetHeader(),&buffer[index], kDspHeaderSize*4);
 
       totalDspSize = fDspHeader->GetTotalLength();
+
+      if (fDspHeader->GetErrorWord()) {
+	fDspHeader->Print("");
+	if ( fDspHeader->GetErrorWord() == (0x000000B1 |  fBlockHeader->GetDspId())
+	     ||  fDspHeader->GetErrorWord() == (0x00000091 |  fBlockHeader->GetDspId()) ){
+	  // an event with a glitch in the readout  has been detected
+	  // it means that somewhere a 1 byte word has been randomly inserted
+	  // all the readout sequence is shifted  untill the next event 
+
+	  AliWarning(Form("Glitch in data detected, skipping event ")); 
+
+	  fGlitchErrors++;
+	  return kFALSE ; 
+	}	
+      }
+      
       indexDsp = index;
       index += kDspHeaderSize;
 
-//       if (fDspHeader->GetPaddingWord() != fDspHeader->GetDefaultPaddingWord()) {
-// 	// copy the field of Padding word into ErrorWord field
-// 	fDspHeader->SetErrorWord(fDspHeader->GetPaddingWord());
-// 	index--;
-//       }
-
       // copy in TClonesArray
       fDDLTracker->AddDspHeader(*fDspHeader, iBlock);
 
@@ -182,6 +176,10 @@ Bool_t AliMUONPayloadTracker::Decode(UInt_t* buffer, Int_t totalDDLSize)
 	    fBusStruct->SetBlockId(iBlock); // could be usefull in future applications ?
 	    fBusStruct->SetDspId(iDsp);
 
+	    // check parity
+	    if(!CheckDataParity())
+		AddParityErrBus(fBusStruct->GetBusPatchId());
+
 	    // copy in TClonesArray
 	    fDDLTracker->AddBusPatch(*fBusStruct, iBlock, iDsp);
 
@@ -200,8 +198,11 @@ Bool_t AliMUONPayloadTracker::Decode(UInt_t* buffer, Int_t totalDDLSize)
       // skipping additionnal word if padding
       if (fDspHeader->GetPaddingWord() == 1) {
 	if (buffer[index++] != fDspHeader->GetDefaultPaddingWord())
-	  AliWarning(Form("Error in padding word for iBlock %d, iDsp %d, iBus %d\n", 
+
+	    AliWarning(Form("Error in padding word for iBlock %d, iDsp %d, iBus %d\n", 
 			  iBlock, iDsp, iBusPatch));
+
+	fPaddingErrors++;
       }
 
       index = indexDsp + totalDspSize;
@@ -226,48 +227,61 @@ Bool_t AliMUONPayloadTracker::Decode(UInt_t* buffer, Int_t totalDDLSize)
 //______________________________________________________
 void AliMUONPayloadTracker::ResetDDL()
 {
-  // reseting TClonesArray
-  // after each DDL
-  //
+  /// reseting TClonesArray
+  /// after each DDL
+  ///
   fDDLTracker->GetBlkHeaderArray()->Delete();
+  fGlitchErrors = 0;
+  fPaddingErrors = 0;
+  fParityErrBus.Reset();
+
 }
 
 //______________________________________________________
 void AliMUONPayloadTracker::SetMaxBlock(Int_t blk) 
 {
-  // set regional card number
+  /// set regional card number
   if (blk > 2) blk = 2;
   fMaxBlock = blk;
 }
 
+//______________________________________________________
 Bool_t AliMUONPayloadTracker::CheckDataParity()
 {
-  // parity check
-  // taken from MuTrkBusPatch.cxx (sotfware test for CROCUS)
-  // A. Baldisseri
+  /// parity check
+  /// taken from MuTrkBusPatch.cxx (sotfware test for CROCUS)
+  /// A. Baldisseri
 
-  Int_t  parity, bit;
+  Int_t  parity;
   UInt_t data;
   
   Int_t dataSize = fBusStruct->GetLength();
   for (int idata = 0; idata < dataSize; idata++) {
 
     data  = fBusStruct->GetData(idata);
-    // Compute the parity for each data word
-    parity = data & 0x1;
 
-    for (Int_t i = 1; i <= 30; i++) {
-      bit = ((data >> i) & 0x1);
-      parity = (parity || bit) && (!(parity && bit));
-    } 
+    // Compute the parity for each data word
+    parity  = data & 0x1;
+    for (Int_t i = 1; i <= 30; i++) 
+      parity ^= ((data >> i) & 0x1);
 
     // Check
     if (parity != fBusStruct->GetParity(idata)) {
+
       AliWarning(Form("Parity error in word %d for manuId %d and channel %d\n", 
 		      idata, fBusStruct->GetManuId(idata), fBusStruct->GetChannelId(idata)));
+
       return kFALSE;
 		     
     }
   }
   return kTRUE;
 }
+
+//______________________________________________________
+void AliMUONPayloadTracker::AddParityErrBus(Int_t buspatch)
+{
+/// adding bus with at least on parity error
+    fParityErrBus.Set(fParityErrBus.GetSize() + 1);
+    fParityErrBus.AddAt(buspatch, fParityErrBus.GetSize() - 1);
+}